Participating Agencies City Police Departments Number Assigned Concord Police Department 1 Novato Police Department 1 Redding Police Department 1 San Pablo Police Department 1 Vacaville Police Department 1 Vallejo Police Department 4 Sheriff's Office Number Assigned Shasta 1 (part-time) State Agencies Number Assigned Department of Justice 1 Department of Motor Vehicles 1 (part-time) Federal Agencies Number Assigned Federal Bureau of Investigations 1 (part-time) U.S. Postal Service 2 (part-time) U.S. Secret Service 1 (part-time) District Attorney’s Office Number Assigned Contra Costa County 1 Humboldt County 1 Lake County 1 Marin County 2 Napa County 1 Shasta County 2 (part-time) Solano County 1 Sonoma County 1